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Contract OI history

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Dec 18, 2026 EXPIRATION

ENPH $40.00 Put

ENPH261218P00040000

Latest saved OI5,978Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ENPH $40.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6,0003,0000 2026-10-09: 6,000 OI2026-10-13: 5,969 OI2026-10-14: 5,969 OI2026-10-15: 5,969 OI2026-10-16: 5,968 OI2026-10-21: 5,978 OI2026-10-23: 5,978 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ENPH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5,9780
Oct 21, 20265,978+10
Oct 16, 20265,968-1
Oct 15, 20265,9690
Oct 14, 20265,9690
Oct 13, 20265,969-31
Oct 09, 20266,000No prior observation